ISOMODEM
Si2457/Si2434/Si2415
V. 9 0 , V. 3 4 , V. 3 2 B I S I S O M O D E M ® W I T H I N T E GR A T E D G L O B A L D A A
Feat...
Description
Si2457/Si2434/Si2415
V. 9 0 , V. 3 4 , V. 3 2 B I S I S O M O D E M ® W I T H I N T E GR A T E D G L O B A L D A A
Features
Data modem formats
ITU-T, Bell 300 bps up to 56 kbps V.21,V.22, V.29 Fast Connect V.42, V.42bis, MNP2-5 Automatic rate negotiation
Type I and II caller ID decode No external ROM or RAM required UART or parallel interface AT command set support
Applications
Set-top boxes Point-of-sale terminals ATM terminals
Integrated DAA
Over 5000 V Capacitive isolation Parallel phone detect Globally-compliant line interface Overcurrent detection
27 MHz clock input 3.3 V power Firmware upgradeable EEPROM interface
Digital video recorder Digital televisions Remote monitoring
Description
The Si2457, Si2434, and Si2415 are complete two-chip modems ranging in speed from 56,000 bps to 14,400 bps. The ISOmodem® chipsets utilize Silicon Laboratories’ third-generation direct access arrangement (DAA) to provide a globally-programmable telephone line interface with an unparalleled level of integration. By sharing the same line-side device, a single design can be used in all countries and for all modem speeds. Available in two small packages, these compact solutions eliminate the need for a separate DSP, modem controller, codec, isolation transformer, relay, opto-isolators, clocking crystal, and 2–4 wire hybrid. The ISOmodem provides conventional data formats with connect rates of up to 56,000 bps, full-duplex, over the Public Switched Telephone Network (PSTN). These devices a...
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